Christen Nagy

Document Type

Internship Report

Publication Date

Spring 2016


As a photo-ID intern with the NOAA Southeast Fisheries Science Center, my project consisted of data management relevant to a longitudinal abundance study of common bottlenose dolphins, (Tursiops truncatus), in Biscayne Bay, Florida. As a result of a previous data conversion effort, some of the historical sighting records in the catalog were missing data (e.g. image files, certain data fields, and dorsal fin quality scores). The first part of my project included data auditing and completion of the historical records to ensure a complete, accurate historical data set. I also participated in field work in Biscayne Bay in October/November 2015 and March 2016, in which photographs of dolphin dorsal fins were collected. These new photos were then uploaded into the catalog using the software FinBase and the corresponding information from the sighting sheets was entered. Dorsal fin photos were matched to historical records. Once an updated catalog was established, I used descriptive statistics to help characterize the population, including the number of sightings and dolphins per field season and the mean latitude and longitude coordinates for each sighting according to the NMFS criteria. Through this internship, I gained valuable data management experience, learned photo-identification data collection and processing techniques, and became familiar with photo-ID catalog maintenance and basic summary analyses.


Department: MBE

MPS Track: MMS

Location: National Oceanic and Atmospheric Administration - Southeast Fisheries Science Center

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